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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Abney Level Calibration
From: Noell Wilson
Date: 2023 Jul 26, 09:21 -0700
From: Noell Wilson
Date: 2023 Jul 26, 09:21 -0700
Hi Chuck,
I agree.
I started with a 7 August 2020 post checking sensitivity or bubble movement. I checked the levels end to end and checked the adjustable table.
After several replies to that post, I tried to put some numbers to it.
With the thinnest thing I had on hand (0.001”) I easily detected a bubble movement at a calculated 23 seconds.
No real effort to measure. Just to detect movement.
Hanging over it all was “Can I use a $100 level, or a $5 surplus vial, to set up an AH?”
Yes you can.
Regards, Noell
